“I think what was frightening about this whole thing was a) the very blunt and honest transparency of it all and b) the fact that it reminded us that, oh crap, we've probably already agreed to similarly invasive agreements every time we've blindly hit the agree button on the terms and conditions for an app hundreds of times since we got our phone,” Verhoeven said.

Verhoeven said Spotify's ability to track a user's moving speed could be used to curate the right tempo.

"If you're a devotee of Spotify I don't think all these rules have come out of nowhere.

"I guarantee hundreds of companies have already done the same."

Ek said Spotify would update the phrasing of their privacy policy in coming weeks to "better reflect" the changes.

Some users have already made up their minds.

Be careful with what you're agreeing to, because that new privacy policy from Spotify is alarming.